Granted Patent
Utility
US 5,609,598 · App. 08/367,063
Method and apparatus for minimally invasive treatment of chronic venous insufficiency
Inventors:
Michael D. Laufer, H. DuBose Montgomery
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Dec 30, 1994
Inventors
Michael D. Laufer
H. DuBose Montgomery
Assignee (at issue)
VNUS Medical Technologies, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.